Assessment of the Oblique Sandwich Osteotomy for Augmentation of Posterior Atrophic Mandible
Rehabilitation of the partially or totally edentulous mandible with implant supported prosthesis has become a common practice in the last few decades. Local conditions of the edentulous ridges may be unfavorable for dental implant placement, where sufficient bony support in both the horizontal and vertical dimensions is the foundation of any successful oral rehabilitation with dental implants.
Challenges include the resorpative changes of the alveolar ridge after tooth extractions and the hard tissue deficits due to chronic periodontal disease or congenitally missing teeth. Neoplasm, osteomyelitis, cysts or trauma can also compromise the situation. All these factors require the oral implantologist to create using regenerative techniques sufficient hard tissue support at the appropriate site before or during dental implant installation.
Multiple bone grafting materials and techniques have been used to reconstruct the partially dentate and edentulous posterior mandibular ridges with high rates of success, these techniques include block onlay grafting technique, guided bone regeneration using membranes or meshes and distraction osteogenesis. The selection of the optimal technique depends on various factors, including the degree of the defect, the grafted bone substitute available, the medical condition of the patient and also the skill and experience of the operator.
The aim of this study is to evaluate the alveolar bone volume by the CBCT after performing oblique sandwich osteotomy in conjunction with interpositional autogenous bone grafting in the atrophied posterior mandible.
연구 개요
상세 설명
Rehabilitation of the partially or totally edentulous mandible with implant supported prosthesis has become a common practice in the last few decades. Local conditions of the edentulous ridges may be unfavorable for dental implant placement, where sufficient bony support in both the horizontal and vertical dimensions is the foundation of any successful oral rehabilitation with dental implants.
Challenges include the resorpative changes of the alveolar ridge after tooth extractions and the hard tissue deficits due to chronic periodontal disease or congenitally missing teeth. Neoplasm, osteomyelitis, cysts or trauma can also compromise the situation. All these factors require the oral implantologist to create using regenerative techniques sufficient hard tissue support at the appropriate site before or during dental implant installation.
Multiple bone grafting materials and techniques have been used to reconstruct the partially dentate and edentulous posterior mandibular ridges with high rates of success, these techniques include block onlay grafting technique, guided bone regeneration using membranes or meshes and distraction osteogenesis. The selection of the optimal technique depends on various factors, including the degree of the defect, the grafted bone substitute available, the medical condition of the patient and also the skill and experience of the operator.
The aim of this study is to evaluate the alveolar bone volume by the CBCT after performing oblique sandwich osteotomy in conjunction with interpositional autogenous bone grafting in the atrophied posterior mandible.
In this study ten atrophied posterior mandibular regions will be augmented with autogenous interpositional particulate bone harvested from the ipsilateral retromolar area through the oblique sandwich osteotomy procedure. The mobilized segment will be stabilized by using 2.0 manipulates and screws. The graft is then covered by platelet rich fibrin membrane.
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 연락처
- 이름: nehal Shobair lecturer, PhD
- 전화번호: 010171181794
- 이메일: nehalshobair@dent.asu.edu.eg
연구 장소
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Cairo, 이집트
- 모병
- Faculty of Dentistry Ain Shams Univeristy
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연락하다:
- nehal Shobair lecturer, Phd
- 이메일: nehalshobair@dent.asu.edu.eg
-
연락하다:
- 전화번호: +201017181749
-
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Partially edentulous patients with moderate to severe posterior atrophic mandibular ridges,
- Sufficient alveolar bone width for implant placement (at least 7 mms),
- A native alveolar bone height above the mandibular alveolar canal till the alveolar crest (measuring from 5 to 9 mms),
- Adequate inter-arch space,
- The site of the graft is free from any pathologic lesion as cyst, infection or tumor.
Exclusion Criteria:
- The patients suffering from any systemic and metabolic disease that may affect normal healing of bone and soft tissue as diabetes or osteoporosis
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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활성 비교기: oblique sandwich osteotomy augmenation
atrophic posterior mandibular regions wiil be augmented with autogenous interpositional particulate bone harvested from the ipsilateral retromolar area through the oblique sandwich osteotomy procedure. The mobilized segment will be stabilized by using 2.0 manipulates and screws. The graft is then covered by platelet rich fibrin membrane. |
atrophic posterior mandibular regions is augmented with autogenous interpositional particulate bone harvested from the ipsilateral retromolar area through the oblique sandwich osteotomy procedure. The mobilized segment is stabilized by using 2.0 manipulates and screws. The graft is then covered by platelet rich fibrin membrane. |
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Clinical evaluation
기간: 4 months
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clinical evalauation of the occurrence of any complications after augmentation involving wound dehiscence, infection, neuro-sensory disturbance and for the stability of the augmented alveolar ridges |
4 months
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Radiographic evaluation
기간: 4 months
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Linear and volumetric Measurements to calculate first the post-operative CBCT bone volume then the volume of the plate is calculated separately and subtracted from the postoperative volume. The preoperative and postoperative CBCTs and the difference in volume is calculated through subtraction of postoperative and preoperative results |
4 months
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- 1415
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